Answer in brief
CVE-2026-72351 records a Unknown severity vulnerability in gue: validate REMCSUM private option length. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-72351 records a Unknown severity vulnerability in gue: validate REMCSUM private option length. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <158b9995d3c87f3b93f5c22df54a12e12a3438b3 || >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <7c6876ec1b227261b51803f784c7be1b2242a1a0 || >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <2c4de9988e9ddc760b750d6b6e701c35ff60ad14 || >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <2a99224c120823987e4d829726f4ecb33e03fc1e || >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <61e78679c7c9ca685bff58e4b6348304dc60aafd || >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <4a4a1d41c6e901e773bcf795f562a47fa71f692a || >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <f618cbe9b24cd0202004d2db781d5f80ab77037f || >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <d335dcc6f521571d57117b8deeebc940836e5450 | 158b9995d3c87f3b93f5c22df54a12e12a3438b3, 7c6876ec1b227261b51803f784c7be1b2242a1a0, 2c4de9988e9ddc760b750d6b6e701c35ff60ad14, 2a99224c120823987e4d829726f4ecb33e03fc1e, 61e78679c7c9ca685bff58e4b6348304dc60aafd, 4a4a1d41c6e901e773bcf795f562a47fa71f692a, f618cbe9b24cd0202004d2db781d5f80ab77037f, d335dcc6f521571d57117b8deeebc940836e5450 |
| Linux/Linuxgeneric | 3.19 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: gue: validate REMCSUM private option length GUE private flags can indicate that remote checksum offload metadata is present. The private flags field itself is accounted for by guehdr_flags_len(), but guehdr_priv_flags_len() currently returns 0 even when GUE_PFLAG_REMCSUM is set. This lets a packet with only the private flags field pass validate_gue_flags(), after which gue_remcsum() and gue_gro_remcsum() read the missing REMCSUM start/offset fields from the following bytes. Account for GUE_PLEN_REMCSUM when GUE_PFLAG_REMCSUM is present so that malformed packets are rejected during option validation.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <158b9995d3c87f3b93f5c22df54a12e12a3438b3 || >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <7c6876ec1b227261b51803f784c7be1b2242a1a0 || >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <2c4de9988e9ddc760b750d6b6e701c35ff60ad14 || >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <2a99224c120823987e4d829726f4ecb33e03fc1e || >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <61e78679c7c9ca685bff58e4b6348304dc60aafd || >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <4a4a1d41c6e901e773bcf795f562a47fa71f692a || >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <f618cbe9b24cd0202004d2db781d5f80ab77037f || >=c1aa8347e73e4092411fbd96cc59531fb7e76d04 <d335dcc6f521571d57117b8deeebc940836e5450 | 158b9995d3c87f3b93f5c22df54a12e12a3438b3, 7c6876ec1b227261b51803f784c7be1b2242a1a0, 2c4de9988e9ddc760b750d6b6e701c35ff60ad14, 2a99224c120823987e4d829726f4ecb33e03fc1e, 61e78679c7c9ca685bff58e4b6348304dc60aafd, 4a4a1d41c6e901e773bcf795f562a47fa71f692a, f618cbe9b24cd0202004d2db781d5f80ab77037f, d335dcc6f521571d57117b8deeebc940836e5450 |
| Linux/Linuxgeneric | 3.19 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: gue: validate REMCSUM private option length GUE private flags can indicate that remote checksum offload metadata is present. The private flags field itself is accounted for by guehdr_flags_len(), but guehdr_priv_flags_len() currently returns 0 even when GUE_PFLAG_REMCSUM is set. This lets a packet with only the private flags field pass validate_gue_flags(), after which gue_remcsum() and gue_gro_remcsum() read the missing REMCSUM start/offset fields from the following bytes. Account for GUE_PLEN_REMCSUM when GUE_PFLAG_REMCSUM is present so that malformed packets are rejected during option validation.
Quoted source text, attributed separately from HOL analysis.